Typewriting-machine



B. C. STICKNEY.

TYPEWRITING MACHINE.

APPLICATION FILED FEB-1,19.

Patented Oct. 26, 1920.

3 SHEETS-SHEET In 0 eniow B. C. STICKNEY.

TYPEWRITING MACHINE. Y APPLICATION man FEB. I. 1919.

Patented 001:. 26,1920.

3 SHEETS-SHEET 3.

w 0 IL m w 1 UNITED STATES "PATENT OFFICE.

BURNHAM C. STICKNEY, OF" ELIZABETH, NEW? JERSEY,

ASSIGNOR ,TQ UNDERWOOD TYPEWBITER COMPANY, OF NEXV YORK, N. Y., ACDRPORATION 10F DELAWARE.

TYPEWRITING-MACHINE.

Specification of Letters Patent.

Patented oer. 2c, 1920.

Application filed February 1, 1919. Serial No. 274,399.

To all whom it mag concern Be it known that I, BURNHAM C. STICK- NEY, acitizen of the United States, residing in Elizabeth, in the county ofUnion and State of New Jersey, have invented certain new and usefulImprovements in Typewriting-Machines, of which the following aspecification.

This invention relates to typewriting chines and is herein disclosed asapplied to an Underwood standard typewritingma chine, employing awell-known'kind 01' fanfold web for the reproduction of several copiesof writing upon a given form. EX- cept in certain types of typewritingmachines, known as the fan-told billing machines, the manipulation ofcarbon sheets necessary to make duplicate and triplicate copies has beenextremely annoying. In machines of the last-mentioned type, thedifficulty of repositioning the carbon sheets relatively to the worl-sheets hasbeen overcome by making the typewriter platen shift able topermit the work-sheets and carbon sheets to be straightened out, withthe result that it is comparatively easy to shift the carbon sheetswhile still remaining interleaved between the work-sheets.

According to the present invention, such shifting of the platen may beunnecessary. liloreover, the device is adapted to be ap plied to anordinary typewriting machine, without involving such reconstruction ofthe carriage as is usually necessary in the machines of the fan-foldbilling kind. To obtain these and other results, I have found itadvantageous to provide a structure mounted in the usual platen frame ofan Underwood typewriting machine and extending upward. In order toobtainstraight stretches of webs for the repositioning of the carbon sheetsrelatively to the work-sheets, I have found it desirable to mount thecarbon sheets upon rollers in the frame above the platen, and to provideguiding devices for separating the carbon sheets and the work-sheets, sothat they may move relatively to each other without friction upon oneanother. By using rollers, the guiding devices may be much shorter thanthe length of carbon sheet utilized, and

may become practically. mere 'devices for separating the carbon sheetsfrom the web if desired. 7

The structure mounted upon the platen frame may comprise end brackets ordevices in which the rollers carrying the carbon sheets are journaled,and may also comprise feed-rolls for feeding the carbon sheets and thework-sheets together, said feed rolls being advantageously geared to theplaten,

so that they may serve not only for the repositioning of the work-sheetsafter being repositioned relatively to the carbon sheets, but may alsoserve for line-spacing and the other purposes 0r typewriting. If theplaten is provided with the usual feed rolls, the usual casting ofi keymay serve to release both the usual feed rolls and the feed rolls abovethe platen. After the worksheets have been fed forward beyond the carbonsheet rollers, the work-sheets may be brought together, so as to besevered by a single operation oi a knif and all may e positioned forsevering by gaging against the end-gage.

It a fan-told web is used, the guiding devices may comprise a slittingknife adapted to slit the web into its separate sheets in order topermit the web sheets to be separated to allow the carbon paper to bepositioned relatively to them. The rollers that carry the carbon papermay be normally tensioned by springs tending to wind up the paper, butmay be detained by ratchet pawls to enable the carbon sheets whenunrolled to be held unrolled. Thus the carbon sheets and the webs may beso positioned as to permit them to be grasped betweenthe afore mentionedfeed rolls, and to be fed rearwardly by said feed rolls down past theprinting point.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure-l is a face view, largely broken away, of an Underwood typewritercarriage having my invention applied thereto.

Fig.1 is a detail view, partly in section, showing the mounting of acarbon roll.

Fig. 2 is a perspective view of the webslitting devices as seen fromabove.

Fig. 3 is a fragmentary, separated, perspective view of an upper feedroll and some associated mechanism.

Fig. 4 is a side view, showing the connections between the casting offmeans and the feed rolls.

Fig. 5 is a fragmentary, perspective view of a carbon sheet roller.

Fig. 6 is an end view, showing the ratchets for the carbon sheet rollersand a handle for releasing them.

Fig. 7 is an end View from the opposite side, showing stops for thecarbon sheet rollers.

Fig. 8 is a sectional, side view of the parts seen in Fig. 1, with thefeed rolls cast off and ready to have the sheets of the web severed.

Fig. 9 is a diagrammatic perspective View, showing the work-sheets atthe beginning of writing on a form.

Fig. 10 is a similar view, showing the position at the end of writing ona form.

Fig. 11 is a view similar to Fig. 10, with the work-sheets furtheradvanced to bring the carbon sheets clear of all the curves in thework-sheets to permit their readjustment relative thereto.

Fig. 12 is a perspective view, showing the parts adjusted as in Fig. 8.

Fig. 13 is a fragmentary, perspective view, largely broken away, of theguides for the worksheets.

In the Underwood typewriting machine, a fan-fold web or plies of otherwork-sheet 20 are led from the rear of the platen frame 21, down over apaper-table 22, beneath a platen 23, the platen being journaled in ends24: of the platen frame. In order to hold the work-sheet against theplaten and to cause it to advance at the operation of the usualline-space slide 25, which is effective through the usual pawl 26 uponthe linespace wheel 27, there are provided rear feed rolls 28 and frontfeed rolls 29, which are mounted in frames 30, journaled on a shaft 31and adapted to be cast off by rotating the usual casting off shaft 32.For operating this casting off shaft, there is provided the usual handlewhich is connected by a link 34: to a rock arm 35 upon the shaft 32, sothat when the handle is depressed, the flat cam faces 36 of the shaft 32will spread rock arms 37 upon the frames 30 against the tension ofsprings 38, which usually hold the rolls against the platen.

According to the present invention, there are provided feed rolls 39 and40 above the platen, which may either take the place of the feed rolls28 and 29 or may supplement 7 them, and the feed rolls 39 and a0 may beadapted to feed forward the work-sheet 20, because the feed roll 40 isgeared to the platen by an intermediate idle pinion 4C1, meshing with apinion 12 fast upon the nannies platen axle and with a pinion 43 fastupon the axle it of the feed roll 10, the pitch diameters of the pinionsbeing so adjusted as to cause t 1e feed roll 10 to feed the worksheet 20forward at the same rate as the platen tends to turn it. The feed rolls39 and 40 may be normally forced together by means of a spring 58, whichbears against arms 45 and 16, upon which the feed rolls 39 and 10 arerespectively journaled by means of their axles 17 and 1 1.

Whenever it is desired to move the worksheets relatively to the platen,the handle 33 may be shifted to cast off the rolls 39 and 10 from thework-sheet, thereby releasing the work-sheet and at the same timecasting off the feed rolls 28 and 29 if the latter are employed. Toenable the feed rolls 39 and 4:0 to be thus cast off, the arms 15 and16, which may be identical and support each end of the feed roll axlesor shafts 4.7 and 141, are journaled in stub shafts 19 fast uponbrackets 50 and 51, which are held by screws to the usual top plates 52and 53 of the platen frame, said stub shafts lying within the platenframe 21.

The work-sheet 20 is herein shown as fanfolded and as comprising a frontsheet or web 5 1, a second sheet or web 55, a third sheet or web 56 anda back sheet or web 57, all fan-folded lengthwise and integral with thefront sheet 5s. W hen such fan-folded sheets are employed, they arepreferably slit before they reach the feed rolls 39 and 40, and, forthis purpose, there are provided a series of sharp edged, pointedslitting knives 58 fast in a paper guiding frame 59, which is fast tothe brackets 50 and 51.

The paper guiding frame 59 is herein disclosed as comprising a series ofplates 60, 61, 62, 63 and 6 1, between which are adapted to be guidedthe thicknesses of webs 5 1, 55, 56 and 57, alternately with a frontcarbon sheet 65, a central carbon sheet 66 and a rear carbon sheet 67,said carbon sheets being respectively fast to rolls 68, 69 and 70. Theserolls are journaled in the brackets 50 and 51 in a manner which will behereinafter disclosed. The plates 60, 61, 62, 63 and 6 1, forming thepaper or sheet guiding frame, with the exception of the outer plates,are advantageously straight, with the result that carbon sheets andwork-sheets lying between them will lie perfectly straight, and thusslip over the plates and over each other with little orno friction,thuspermitting the carbon sheets, when lying in or above said sheet-guidingframe, to be shifted relatively to the work-sheets. The paper orsheet-guiding frame 59 extends down toward the top front of the platenand slants rearwardly therefrom. In addition to the sheet-- guidingframe just described, there are provided other guiding devices for thesheet including a front guide plate 71 and a rear 130 guide plate 72adapted to carry the front web 54 and the rear web 57, respectively,away from the adjacent carbon sheets.

In setting up a new web or webs, as the case may be, and new carbons inthe machine, as at the beginning of a days work, the carbon sheet 65 isadvantageously the first'to be threaded into position. This may be doneby rotating the carbon roll 68 backwardly while guiding the carbon sheetby inserting a finger through one of the front openings 73 in the guideplate 71. If desirable, or necessar the typist may also insert a fingerfrom the rear through openings 75 and 76 in the rear supporting guideplate 72, and in a V-shaped extension 78 of the guide plate 64 To rotatethe roll backwardly to unwind the carbon sheet, there is provided ahandle 80 fast to the roll and projecting beyond the bracket 51. Thetypist rotates the roll backwardly by its handle 80 until the carbonsheet arrives at the lower edge of the guide 59, as shown in Figs. 8 and12. There is a spring 81 normally tending to wind up the roll, but thisspring is prevented from being effective at this time because a pawl 82is pressed by a spring 83 against the ratchet wheel 84 fastened to theroll 68 by being fastened to an extension 85 of its axle.

hen the carbon sheet has thus been properly positioned, the typist mayposition a stop 86 to render the pawl 82 unnecessary. To accomplishthis, the stop 86 is formed as a member, comprising an arc edge 87adapted to lie in a thread 88, said thread being adjustably fastened tothe roll, and having an abutment or stop 89, so that the turning of theroll will be limited by the stop when the stop strikes the abutment 89-as the roll. turns in one direction. For adjusting the thread and itsabutment upon the roll, the axle 91 of the roll is journaled in anopening in the bracket 50 and is provided with a shoulder 92 bearingagainst the inner face of the bracket, so that the axle has a shortextension 93 terminating in a shoulder 96%, against which a sleeve 95 isadapted to bear, said sleeve having the thread 88 out upon it. To adjustthe sleeve 95 upon the axle 91, there is provided a thumb screw 96.,which is adapted to be screwed down upon a threaded extension 97 of theaxle 91, and, when so screwed down, holds the sleeve 95 jammed betweenthe shoulder 92 and the thumb screw. When the carbon sheet 65 has beenadjusted in the manner described. the sleeve is adjusted upon the carbonroll with the stop 86 against the stop 89, thus preventing any backwardrotation of the roll after the pawl 82 is released from the ratchet 84:.

After the first or front carbon sheet 65 has been thus adjusted, it willbe usually. found most convenient to adjust the second sheet 55 of theweb 20, the web 20 having been previously slit into its sheets for thispurpose. he sheet 55 is carried up from be tween the guide plates 60 and61 past the feed rolls and so, and the upper ends of these guide plates,and then is carried behind a roll extension 98 of the guide plate 71,and then in front of and over a roll extension 99 of a guide plate 100,which latter is adapted to hold the web clear of the roll. (59. In orderto facilitate the guiding of the web 55 over the guide plate 100, lingeropenings 101 are provided in the guide plate. The web from the guideplate is carried upwardly through an opening 102 and past a knife 103,which is adapted to sever the ebs at the opening, as will hereinafterappear.

The typist will next usually lind it ad vantagcous to thread the carbonsheet 55. which may be done in the same way as the carbon sheet wasthreaded, except that the carbon sheet 60 passes between the guideplates 61 and 62 in the guide 59. Its bot-- tom is alined with thebottom of the sheet 65. To enable it to be turned backwardly andcontrolled, its roller 69 is provided with a ratchet wheel 84, a pawl82, a sleeve 95, a stop 86, and a thread 88, substantially like thoseprovided for the roll 68, so that, when positioned, its pawl may be madeunnecessary by the adjustment of its sleeve 95.

Next the typist will usually find it most convenient to thread theweb-sheet 56 by carrying it up between the'plates 62 and (S -5 of theguide 59, past the roll and rearwardly over a curved guide 104, which isadapted to hold it clear of the carbon roll 70, and then behind theturned-over extension 105 of the plate 100, and thence upwardly throughthe opening 102 and past the knife 103. v

The typist will next usually find it convenient to thread the carbonsheet 67. In doing this, the typist drops it downward by rotating itsroll rearwardly and guiding it between the plates 63 and 64; of theguide 59, until its lower edge is in alincment with the other carbonsheets, in which position it is held by a pawl 82 like theabove-described pawl 82. Its roll has a sleeve 9:) adapted to beadjusted against its stop 89. so that the carbon sheet, like the othercarbon sheets, will be held in position independently of its ratchetwheel. and pawl.

Then the typist will find it convenient to thread the rear web-sheetupwardly, carrying it in front of the feed roll 10, behind the ii-shapedextension of the plate 6% and in front of the rear guide 72, theV-shaped plate 78 carrying it clear of the roll 70.;so that the web 57comes out of the opening 102 adjacent the knife 103. Finally, thhtypist, may thread the front web-sheet 54: in front of the guide plate106, which forms the front plate of the guide The typist carries thefront web behind the feed rollii.

then over the guide 71, which holds it clear of the carbon roll 68, andthence carries it upwardly through the opening 102 and past the knife 10hen the webs and carbon sheets have all been threaded in this manner,the typist may :u'tuate linger-piece 108 to swing the pawls 82 clear oftheir ratchet wheels To accomplish this, each pawl may be in the form ofa b ll-crank having a tail 109, all of said tails overlying a circularextension 110 around the pivot 111 of the finger-piece 108, so that whenthe linger-piece 108 is swung, pins 112 upon said extension will strikethe tails of the pawls and carry the pawls clear of the ratchet wheels.'l he linger-piece 108 may be nori'nally detained in its ineliectiveposition by a spring 113, having; a hollow 1.11, adapted to engage a pin115 upon the finger-piece. ll hen swung to eflective position to releasethe pawls, an extension 116 of the spring may hold the finger-pieceagainst a pin 11'? adapted to limit its throw.

The typist may then swing the handle or fingenpiece 33 to carry the feedrolls 39 and 410 against the platen, as well the feed rolls 2S and 29,if the latter are provided. The connections, whereby the linger-piece 33actuates the feed rolls 39, include a lug 118 upon the usual link ea, alink 119 being pivoted to said lug and also pivoted to an arm 120 of arocking release frame 121. This release frame is pivoted upon the shafts19 upon which the arms -15 and a6 are jour naled, and when swung toreleasing position, carries a pair of pins 123 and against a pair of camlugs 125 and 126 upon the arms 45 and 1-6, respectively, thus cummingthe arms apart against the pressure of the strong spring 18. When thefeed rolls 39 and a0 grip the work-sheets and the carbon sheets betweenthem, the platen may be re volved baekwardly by the usual handle 12? tobring the top writing; line upon the outer web 54L to the printing pointat the usual wing scale 128. The typist may then proceed to write byactuating the ty )e keys and the usual line-space handle, thusalternately writingand advancing the work-sheets until the form isfilled out or the desired printed matter is written, which brings thecarbon sheets to the position seen in Fig. 10.

The typist then casts oil the feed rolls 39 and 10 and either rotatesthe platen forwardly or draws upon the worksheet-webs, which projectfrom the opening 102, to bring the last writing line of the next formjust above the lower end of the carbon sheets 65, 66 and 67. To enablethis drawing; of the web to be measured automatically, the bracketssupport an adjustable end upon a gage arm 180, said gage arm being; fastupon the top plate 131 carried by the brackets 50 and 51. When the webshave been thus gaged, the typist turns the finger-piece 33 to permit thespring" 18 to throw the feed rolls E59 and 420 against the worksheets,so that if the platen is new rotated backwardly, the work-sheets willdraw the carbon sheets 65, 36 and (37 baclzwardly with them against thetons on of the springs 81, which normally tend to wind upthe carbonsheets upon their rollers. "lhe typist rotates the platen bachwardlyuntil the first *riting line upon the orvside web 5 1 is at the wingscales 128, and then proceeds to write upon tne web and actuate theline-space handle as before.

if the form or written out matter happens to be of the length from theopening 102 to the wing scale 128, t is typist may actuate the lcnife103 to sever the webs at the end of writing the second form, see Fig.10, and then turn the platen forwardly to bring the carbon sheets to theFig. 8 or 11 position, and then release the feed rolls 39, as before,see Fig. 12, and the webs against the end gage 129. the form is only afraction of the length between the knife 103 and the wing scale 128, thetypist may best delay the severing until the requisite number of formshave been written to lill up this distance. Any fractional length of aform will be automatically talren care of by gaging the ends of the websagainst the end gage 129, and then severing by actuating the 1 31118,care being taken to sever the webs immediately after the writing of formand before the webs and carbon sheets reach the Fig. 12 position, since,if severed after gaging and before being); turned bacliwardly, the endsof the webs will fall below the knife and require rethreading. The knife103 is advantageously pivoted on a bracket 135 projecting from thebracket 51, and is provided with a handle 1% for actuating it. Thisenables the webs to be severed even though they are not held at thebottom by the feed rolls.

in order to enable new rolls 68, 69 and 70, carrying carbon paper, to beinserted, the extension of each roll shaft may be journal-ed in a plate137 fitting a corresponding opening in the bracket 51, and provided witha lug 138 through which a screw 139 is adapted to pass to hold the platein position on the bracket. W' hen the screw 1-39 is removed and thethumb screw 96 taken oil, the roll may be withdrawn through the openingleft by the removal of the plate 137.

The object of having a screw-thread 88 to form the track between thestops 86 and 89 is to enable any desired number of rotations of thecarbon-paper roll to be had without arresting the roll. 1n order toenable t e lug or stop 86 to travel in this thread, it is slidablymounted on a pin 1 10 fast in the bracket 50.

t will be observed that the carbon sheets follow straight paths whenthey are clear of the platen, and that the web-sheets follow curvedpaths, ,T he guide plates 71, 72, 104, 100 and 105, may be so locatedthat the distance each web travels from the feed rolls 39 and 40. to theopening 102 is identical, with the result .that when the knife seversone web at the desired point, it severs them all at the same point. Ifdesired, the front plate 106 and therear plate 64; may be provided withflaring ends 145 and 146to enable the carbon sheetsto be more easilyguidedinto the properposition. The feed rolls 39. and 40 advantageouslywork in openings 147 in the guide 59, which are considerably longer andwiderthanthe rolls, thus minimizing the distortion of the paper and thecarbon sheets as they emerge from and enter between the plates 60, 61,62, 63, 64, etc.

In orderto make sure that the threaded web-sheets 54, 55, 56 and 57 donot drop out of the opening 102, after being severed, the plate:l31 maybe provided with L-plates 141 and 142, having flaring flanges,.betweenwhich the webs are guided, said L-plates being held to the bottomof theplate by screws 143, one of said screws also passing through .thebent-over bottom 14% of the end-gage arm 130, and thus servingto holdsaid arm in position. It willbe observed that if separate webs are usedand thebottom feed rolls 28 and 29 are omitted, the top feed rolls 39and 40 will feed both the front and the rear webs along a straightlength, with the result-thatthere will be no relative creeping of thewebs as they pass around the .platen. This gives the present device autility in connection with separate webs which is impossible tothe same.extent where feed rollsare depended upon which hold a worksheet againsta curved surface, like the platen. The carbon rolls 68, 69 and 70 may beregarded as holding devices for carbon sheets, and the plates 106, 60,61, 62, 63 and 64 may be regarded as separating devices for separatingthe carbon sheets from the work-sheets, or as work-supporting de vices,The plates T1, 100, 72, etc., also may be regarded as work-supportingdevices for the webs or work-sheets, and the lugs or stops 86 formdevices for arresting the carbon sheets at the limit of their travel.

In order to facilitate the threading of the carbon sheets, the plates106 and 64 may be flared out, as indicated at 145 and 146, thusaffording a large enough opening between them and the adjacent plates toreadily thread the carbon sheet through. In order to facilitate thethreading of the central carbon sheet, the plate 62 may. extend higherthan the plate in front of it .by a small amount, advantageously in theform of fingers, thus enabling the typist, when threading the centralcarbon sheet, to allow the carbon sheet to fall upon said fingers and beguided by them down in betweenthe plates,

If desired, similar fingersmaybeprovided for assisting the threading ofthe worksheetsahthe bottom of the lowerends of the plates 61 and 63.

Variations may be resorted to within the scope of the invention, andportionstofthe improvements may be used without others.

Having thus described my invention, I claim:

1. In a typewriting machine, the combination with a platen, of a frameabove the platen comprising devices for supporting Work-sheets above theprinting line upon the platen, separate devices forsupporting carbonsheets, fee,d rolls above the printing line on the platen, adapted toseize the worksheets together with the carbon sheets to feed them tosaid devices, and means for driving the rolls at the same peripheralspeedasthe platen.

2. In a typewriting machine, the combination with a platen, ofaframeabove the platen comprising devices for supporting work-sheets above theplaten, separate devices for supporting carbon sheets, feed rolls abovethe printing line on-thepla-ten, adapted to seize the worksheetstogether with the carbon sheets, means for driving the rolls at the sameperipheral speed as the platen, bottom feed rolls adapted to-hold thework-sheets against the platen, and a single device for making all ofsaid feed rolls simultaneously effective vor ineffective.

In a typewriting machine, the combination with a platen, of .aframeabove the platen, feed rolls abovetheprinting.line on the platen, acarbon-sheetsupporting device on the frame above said-feed rolls,worksheet-supporting device also. upon the frame, means for causing thecarbon-sheet-supporting device to retract the carbon shoot upwardlybetween two work-sheets, and means for arresting the carbon sheet inposition to be fed by the feed rolls.

4. In a typewriting machine, the combination with a platen, of a frameabove the platen, feed rolls above the printing line on the platen, acarbon-sheet-supporting device on the frame, a work-sheet-supportingdevice also upon the frame, means for causing the carbon-sheetsupportingdevice to retract the carbon sheet between two worksheets. means forarresting the carbon sheet in position to be fed by the feed rolls, anda finger-piece actuable to release the feed rolls to permit the carbonsheet to be readjusted relatively to the work-sheets.

5. In a typewriting machine, the combination with a platen, of asupport'for worksheets and a carbon sheet above the platen, devices forseparating the work-sheets and the carbon sheet to enable the carbonsheet to be moved relatively to the work-sheets, and feed rolls on saiddevices adapted to cause. all said sheets to be .fed 5 together.

6. In a typewriting machine, the combination with a platen, of a supportfor worksheets and a carbon sheet above the platen, devices forseparating the work-sheets and the carbon sheet to enable the carbonsheet to be moved relatively to the work-sheets, feed rolls on saiddevices adapted to cause all said sheets to be fed together, other feedrolls adapted to hold the sheets against tne platen, and means forsimultaneously making all said feed rolls effective or ineffective.

7. In a typewriting machine, the combination with a platen, of a supportfor work-sheets and a carbon sheet above the platen, feed rolls abovethe platen, plates above and below said feed rolls to separate thecarbon sheet from the work-sheets, means for casting off the feed rolls,and means for automatically moving the carbon sheet relatively to thework-sheets when said feed rolls are cast off.

,8. In a typewriting machine, the combination. with a platen, of asupport for work-sheets and a carbon sheet above the platen, feed rollsabove the platen, plates above and below said feed rolls to separate thecarbon sheet from the work-sheets, means for casting off the feed rolls,means for automatically moving the carbon sheet relativelv to thework-sheets when said feed rolls are cast off, and connections wherebysaid feed rolls, when effective, drive the work-sheets at the peripheralspeed of the platen.

9. In a typewritingr machine, the combination with a platen, of devicesfor carrying work-sheets and a carbon sheet around the platen, platesfor separating; the sheets along a straight stretch thereof, to enablethe carbon sheet to be moved relatively to the work-sheets, and feedrolls at one edge of said plates adapted to he made effective forseizing said sheets to feed the sheets together.

107 In a typewriting machine, the comhination with a platen, of devicesfor carrying work-sheets and a carbon sheet around the platen, platesfor separating the sheets alonga straight stretch thereof, to enable thecarbon sheet to be moved relatively to the work-sheets, feed rolls atone edge of said plates adapted to be made elfective for seizing saidsheets to feed the sheets to gether, means for causing said feed rollsto turn at the same peripheral speed as the platen, and a finger-piecefor making said feed rolls effective or ineffective, at will.

11. In a typewriting machine, the com bination with a platen, of devicesfor carrying worksheets and a carbon sheet around the platen, plates forseparating the sheets along a straight stretch thereof, to enable ca onsheet to he moved relatively to the work-sheets, feeding devices forseizing said sheets at one edge of said plates to mamas cause the sheetsto feedtogether, and feed rolls adapted to hold the sheets against theplaten to cause them to feed together when moved to the feed rolls bysaid feeding devices.

12. in a typewriting machine, the combination. with a platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends, worlrsheet-supporting devices mounted in said brackets,adapted to guide work-sheets away from the platen, andcarbon-sheet-holding rollers positioned between said work-sheets,adapted to automatically retract the carbon sheets from between thework-sheets, and adapted to permit the carbon sheets to be retractedbackwardly with the work-sheets around the platen.

13. In a typewriting machine, the comllll tion with a platen frame and arevoluble platen therein, of ends for frame, brackets mountedv upon saidends, worksheet-supporting devices mounted in said rackets, adapted toguide worksheets away from the platen, carbon-sheet-holding rollersPOSltlOl-ltltl between said work-sheets, adapted to automaticallyretract the carbonsheets from between the work-sheets, and adapted topermit the carboirsheets to be retracted baclrwardly with the WOIlZ-heets around the platen, feed rolls journa in said brackets above theplaten, and punons cminectingg' said fed rolls to said platen to causethe worksheets and the carbon-sheets to be moved baclmvardly when theplate, is

turned backwardly.

1 L. ln a typewriting machine, the combination with a platen frame and arevoluble plate therein, of ends for said frame, brackets mounted uponsaid ends, worksheet-supporting devices mounted in said lnxaclwts,adapted to guide work-sheets away fro i the platen, carbon-sheet-holdingrollers positioned between said work-sheets, adapted to automaticallyretract the carbon sheets between the worl-:sheets, and adapted topermit the carbon-sheets to be retracted backwardly with the work-sheetsaround the platen, and, plates for separating the worksheets and thecarbon-sheets, to permit the carbon-sheets to be readjusted relativelyto the work-sheets.

15. In a typewriting machine, the combination with a platen frame andreroluble platen therein, of ends for said frame, brackets mounted uponsaid ends, worksheet-supporting devices mounted in said brackets,adapted to guide work-sheets away from the platen, carbon-sheetholdingrollers positioned between said work-sheets, adapted to automaticallyretract the carbon sheets between the work-sheets, and adapted to permitthe carbon sheets to be Mu 1'6- tracted backwardly with the work-sheetsaround the platen, feed rolls journals-d in said brackets above theplaten, )inions connecting said feed rolls to said platen to cause thework-sheets and the carbon sheets to be moved backwardly when the platenis turned backwardly, and plates for separating the work-sheets and thecarbon sheets, to permit the carbon sheets to be readjusted relativelyto the Work-sheets.

16. In a typewriting machine, the combination with a platen frame and arevol'uble platen therein, of ends for said frame, brackets mounted uponsaid ends, worksheet-supporting devices mounted in said brackets,adapted to guide work-sheets away from the platen, carbon-sheet-holdingrollers positioned between said work-sheets, adapted to automaticallyretract the carbon sheets between the work-sheets, and adapted to permitthe carbon sheets to be retracted backwardly with the work-sheet. aroundthe platen, and devices for adjustably limiting the turning of saidrollers.

17. In a typewritinp; machine, the combination with a platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends, worl sheet-supporting devices mounted in said brackets,adapted to guide work-sheets away from the platen, carbon-sheet-holoingrollers positioned between said work-sheets, adapted to automaticallyretract the carbon sheets between the worksheets,- and adapted to permitthe carbon sheets to be retracted backwardly with the worksheets aroundthe platen, plates for separating the worksheets and thecarbon sheets,to permit the carbon sheets to be readjusted relatively to thework-sheets, and devices for adjustahly limiting the turning of saidrollers.

Hi. In a typewritinsr machine, the combination with a platen frame andarevoluble platen therein, 0t ends for said frame, brackets mounted uponsaid ends, teed roll ers iourna'led in said brackets, separating sheetsto said feed rollers, devices for separ tely guiding the work-sheetsmit'wardl in each other, carbon-sheet-supporting ces positioned betweenthe paths of the said o k-sheet all havin e len-Trth. for brin a d aknife for severing where thev a e brought devices for guidingwork-sheets and carbon printing? line upon the platen, a

20. In a typewriting machine, the combination with a platen frame and arevoluble platen therein, or ends for said frame, ackets mounted uponsaid ends, workeet-guiding devices above the platen, mounted in saidbrackets, carbon sheet rollalso journaled in said brackets andcomprising rolls of carbon sheets, ratchets for said rollers adapted tohold the rolls partly unrolled, springs normally tending to roll up saidrolls, stops for adjustably limiting the turning of said rollers, andmeans for making said ratchets ineffective.

21. In a typewriting machine, the combination with a platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends, worksheet guidinp; devices above the platen, mounted in saidbrackets, carbon sheet r01"- ers also journaled in said brackets and comprising rolls of carbon sheets, ratchets said rollers adapted to holdthe rolls partly unrolled, springs normally tending to roll up said.rolls, stops for adjustably limiting; the turning of said rollers, meansfor making said ratchets ineffective, uiding and separating devices forthe work-sheets and the carbon sheets, and feed rollers geared to saidplaten, adapted to feed the carbon sheets and the work-sheets backwardlyto the platen.

22. In a typewritim; machine, the combination with platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends, worksheet-guiding devices above the platen, mounted in saidbrackets, carbon sheet rollers also iournaled in said brackets andcomprisnp rolls of carbon sheets, ratchets for said rollers adapted tohold the rolls partly unrolled, springs normally tendi. 1 to roll upsaid rolls, stops tor a limiting; the turning of said rollers. mean.

for making sad ratchets inefi efitive. teed rollers for teedin thecarbon sheets and the worksheets nether to the platen. ant; feed rollersadapted to hold the sheets against the platen. 23. In a typewr machine,the combination with a platen Hume and a revaluble platen therein, oiends fo said 'ame, brackets moun' said ends. worksheet-s1 'di i a ptedto guide a front we: tnrwarr v and a rear wor sheet rearwai-rllv as thevrise from the roller ion"- naled between the oaths of tho work-sheadapted to h V for feeding the we of their contact with the work 1ecombi revoltlde said frame,

to guide a suds "f'ior on .l

adapted h ke work-- sheet-g1 4 idin front work-sheet forwardly and arear work-sheet rearwardly as they rise from the printing line upon theplaten, a roller journaled between the paths of the work-sheets, adaptedto hold a carbon sheet, feed rollers for feeding said work-sheets andsaid car bon sheet independently of their contact with the platen, andseparating devices for separating the carbon sheet and the worksheets.

25. in a typewriting machine, the combination with a platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends, a pair of carbon sheet rollers journaled in said brackets,means for guiding a front work-sheet in front of one carbon sheetroller, means for guiding a rear work-sheet behind the other carbonsheet roller, means for guiding a central. work-sheet clear of both saidrollers, and clear of the carbon sheets when once separated therefrom,and means for separating the carbon sheets and the worksheets.

26. In a typewriting machine, the combination with a platen frame andrevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends, a pair of carbon sheet rollers journaled in said brackets,means for guiding a front worksheet in front of one carbon sheet roller,means for guiding a rear work-sheet behind the other carbon sheetroller, means for guiding a central work-sheet clear of both saidrollers, and clear of the carbon sheets when once separated therefrom,means for separating the carbon sheets and the worksheets, and a pair offeed rollers for feeding the carbon sheets and the worksheets backwardlyto the platen.

27. In a typewriting machine, the combination with a platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends, a pair of carbon sheet rollers journalcd in said brackets,means for guiding a front work-sheet in front of one carbon sheetroller, means for guiding a rear work-sheet behind. the other carbonsheet roller, means for guiding a central work-sheet clear of both saidrollers, and clear of the carbon sheets when once separated therefrom,means for separating the carbon sheets and the worksheets, a pair offeed rollers for feeding the carbon sheets and the work-sheetsbackwardly to the platen, and a pair of feed rollers adapted to hold thework-sheets against the platen.

28. In a typewriting machine, the combination with a platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends, a pair of carbon sheet rollers journaled in said brackets,means for guiding a front work-sheet in front of one carbon sheetroller, means for guiding a rear work-sheet behind the other carbon shet roller, means for guiding a central work-sheet clear of both saidrollers,

and clear of the carbon sheets when once separated herefrom, means forseparating the car on sheets and the work-sheets, a pair of feed rollersfor feeding the carbon sheets and the work-sheets backwardly to theplaten, and means for gearing said feed rollers to turn at the sameperipheral speed with the platen.

29. In a typewriting machine, the combination with a platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends, a pair of carbon sheet rollers journaled in said brackets,means for guiding a front work-sheet in front of one carbon sheetroller, means for guiding a rear work-sheet behind the other carbonsheet roller, means for guiding a central work-sheet clear of b th saidrollers, and clear of the carbon sheets when once separated therefrom,means for separating the carbon sheets and the work-sheets, meansnormally tending to wind the carbon. sheets on their rollers, and stopsfor adjustably limiting the turning of the rollers 30. In a typewritingmachine, the combination with a platen frame and a revoluble platentherein, of ends for said frame, brackets mounted upon said ends, a pairof carbon sheet rollers journaled in said brackets, means for guiding afront work-sheet in front of one carbon sheet roller, means for guidinga rear work-sheet behind the other carbon sheet roller, means forguiding a central work-sheet clear of both said rollers, and clear ofthe carbon sheets when once separated therefrom, means for separating"the carbon sheets and the work-sheets, means normally tending to windthe carbon sheets on their rollers, stops for adj ustably limiting theturning of the rollers, and ratchets for temporarily holding the rollerswhile the stops are being adjusted.

31. In a typewriting machine, the combination with a platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends and extending above the platen, carbon sheet-supportingdevices adapted to move carbon sheets between the brackets, devices forseparating work-sheets and carbon sheets, extensions of said devices forbringing the work-sheets together, a single knife for severing thework-sheets when thus brought together, and a for gaging the length ofwork-sheet to be severed.

32. In a typewriting machine the combination with a platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends and extending above the platen, carbon-sheet-supportingrollers journaled in said brackets, and normally tending to wind up thecarbon sheets,

devices for separating work-sheets and carbon sheets, a knife forsevering the worksheets, and a gage for gaging the length of work-sheetto be severed.

33. In a typewriting machine, the combination with a platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends and extending above the platen, carbon-sheet-supportingrollers journaled in said brackets, means for guiding work-sheets infront of and behind and between said rollers, said means includingguide-plates having openings adapted to admit the typists fingers, andfeed rolls journaled in said brackets for feeding worksheets and carbonsheets backwardly to the platen.

34. In a typewriting machine, the combination with a platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends, carbon-sheetsupporting rollers journaled in said brackets,means for guiding work-sheets in front of and behind and between saidrollers, said means including guide-plates having openings adapted toadmit the typists fingers, feed rolls journaled in said brackets forfeeding work-sheets and carbon sheets back wardly to the platen, andfeed rolls adapted to hold upon the platen work-sheets so fed.

85. In a typewriting machine, the combination with a platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends, carbon-sheetsupporting rollers journaledin said brackets,means for guiding work-sheets in front of and behind and between saidrollers, said means including guide-plates having openings adapted toadmit the typists fingers, feed rolls journaled in said brackets forfeeding work-sheets and carbon sheets backwardly to the platen, andgears for causing said feed rolls to drive the work-sheets with the samespeed as the periphery of the platen.

36. In a typewriting machine, the combination with a platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends, a carbon sheet roller journaled in said brackets, and aremovable plate in one bracket adapted to permit the carbon sheet rollerto be removed therethrough.

37. In a typewriting machine, the combi-. nation with a platen frame anda revoluble platen therein, of ends for said frame,brackets mounted uponsaidends, a carbon sheet roller journaled in said brackets, a removableplate in one bracket adapted to permit the carbon sheet roller to beremoved therethrough, a spring normally tending to wind up said roller,anchored in said plate, and a ratchet wheel fast to the roller forcontrolling the spring.

38. In a typewriting machine, the combithrough, and a stop-sleeveadapted to be made fast to the opposite end of the roller, comprising athread having abutments to limit the turning of the roller.

39. In a typewriting machine, the combination with a platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends and eX- tending above the platen, a pair of feed rollers, apair of swinging brackets supporting each feed roller, and journaled insaid firstmentioned brackets, a spring normally moving said feed rollerstoward each other to seize work-sheets therebetween, and a fingerpiecefor separating said feed rollers.

40. In a typewriting machine, the combination with a platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends, worksheet-guiding devices adapted to guide a frontwork-sheetforwardly and a rear worksheet rearwardly, a roller journaledbetween ,the paths of the work-sheets, adapted to hold a carbon sheet,feed rollers for feeding said work-sheets and said carbon sheet, andseparating devices in the form of plates having openings in which saidrollers work for separating the carbon sheet and the work-s ieets.

41. In a typewriting machine, the combination with a platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends, worksheet-guiding devices adapted to guide a front work-sheetforwardly and a rear worksheet rearwardly, a roller journaled betweenthe paths of the work-sheets, adapted to hold a carbon sheet, plates forseparating said sheets, and feed rollers engaging said sheets throughopenings in said plates.

42. In a typewriting machine, the combination with a platen frame and arevoluble platen therein, of ends for said frame, brackets mounted uponsaid ends, worksheet-guiding devices adapted to guide a front worksheetforwardly and a rear worksheet rearwardly, a roller journaled betweenthe paths of .the work-sheets, adapted to hold a carbon sheet, platesfor separating said sheets, feed rollers engaging said sheets throughopenings in said plates, connections whereby said feed rollers turn atthe peripheral speed of the platen, and means for making said feedrollers effective or ineffective, at will.

43. In a typewriting machine, the combination with a platen, of a frameabove the platen comprising devices for supporting work-sheets above theplaten, separate devices for supporting carbon sheets, feed rolls abovethe printing line on the platen, adapted to seize the work-sheetstogether with the carbon sheets, means for driving the rolls at the sameperipheral speed as the platen, means for guiding the front and backworksheets away from the central sheets on leaving said feed rolls, andplates between said rolls for separating intermediate sheets.

44. In a typewriting machine, the conibination with a platen, of a frameabove the platen comprising devices for supporting worksheets above theplaten, separate devices for supporting carbon sheets, feed rolls abovethe printing line on the platen, adapted to seize the work-sheetstogether with the carbon sheets, means for guiding the front and backwork-sheets away from the central sheets on leaving said feed rolls, andplates between said rolls for separating intermediate sheets.

45. In a typewriting machine, the combination with a platen, of asupport for fanfolded work-sheets and a carbon sheet above the platen,devices for separating the worksheets and the carbon sheet to enable thecarbon sheet to be moved relatively to the work-sheets, feed rolls onsaid devices adapted to cause all said sheets to be fed together, andslitting knives for separating the fan folded sheet into its sheets.

46. In a typewriting machine, the combination with a platen, of asupport for fanfolded work-sheets and a carbon sheet above the platen,feed rolls above the platen, plates above and below said feed rolls toseparate the carbon sheet from the work-sheets, means for casting offthe feed rolls, means for antomatically moving the carbon sheet relatively to the worksheets when said feed rolls are cast off, and knivesadjacent said plates for slitting the fan-folded sheets into theirseparate sheets.

47. In a typewriting machine, the combination with a platen, of devicesfor carrying fan-folded work-sheets and a carbon sheet around theplaten, plates for separating the sheets along a straight stretchthereof, to enable the carbon sheet to be moved relatively to thework-sheets, feed rolls at one edge of said plates adapted to be madeeffective for seizing said sheets to feed the sheets together, andknives adjacent said plates for slitting said fan-folded sheet intoBURNI-IAM O. STICKNEY.

lVitnesses EDITH B. LIBBEY, JENNIE P. THORNE.

